Purchased on Amazon. It has been opened once to check the product, but it is unused. ~~~~From the product introduction page~~~~ 【90-degree Right Angle Design on Both Sides】The dual L-shaped 3.6mm TRRS audio cable allows for connection in tight spaces and hard-to-reach areas. The L-shaped plugs solve the problem of limited space between the wall and the device and help prevent poor contact due to bending during use. 【High Sound Quality】The 4-pole AUX cable uses 24K gold-plated connectors to reduce signal distortion and transmission loss, achieving optimal sound quality. The 4-pole 3.5mm plug has a microphone function. Enables voice communication via phone. Enjoy games and TV freely even late at night. 【Durability and Flexibility】The 3.5mm TRRS audio cable effectively suppresses noise with an enameled copper core + TPE material + cotton inner core, and the outer layer is a flexible cotton braid to ensure the best conductivity and durability, achieving optimal signal transmission. With over 10,000 bending tests, it is a cotton braided cable that has been confirmed to last several times longer than general audio cables with a PVC outer layer. The stepped plug design prevents the device housing from getting in the way during connection, so you can use devices such as smartphones and tablets while they are attached. 【Wide Compatibility】Compatible with all devices with a standard 4-pole 3.5mm jack. Can be used with most smartphones, tablets, laptops, MP3 players, cameras, headphones, CD players, car stereos, and home stereos. You can enjoy high-quality music and radio anywhere, such as in your car, room, or office. Compatible with CTIA standard headphones. (Not compatible with OMTP standard/iOS addon headphones) Notes before purchase: 1. Please check if your headphones have a microphone function before purchasing. 2. Make sure the interface type is 3.5mm (2.5mm is not compatible).